From a425518dc40b5fa9b8a171f402b89fb9c5a1e547 Mon Sep 17 00:00:00 2001
From: =?utf8?q?V=C3=A1clav=20Slav=C3=ADk?= <vslavik@fastmail.fm>
Date: Mon, 9 Oct 2006 18:37:33 +0000
Subject: [PATCH] assert if wxString(void* pStart,void *pEnd) ctor is used
 incorrectly

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41823 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/common/string.cpp | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/common/string.cpp b/src/common/string.cpp
index 5770917d5f..1cb717510f 100644
--- a/src/common/string.cpp
+++ b/src/common/string.cpp
@@ -174,8 +174,16 @@ void wxStringBase::InitWith(const wxChar *psz, size_t nPos, size_t nLength)
 // poor man's iterators are "void *" pointers
 wxStringBase::wxStringBase(const void *pStart, const void *pEnd)
 {
-  InitWith((const wxChar *)pStart, 0,
-           (const wxChar *)pEnd - (const wxChar *)pStart);
+  if ( pEnd > pStart )
+  {
+    InitWith((const wxChar *)pStart, 0,
+             (const wxChar *)pEnd - (const wxChar *)pStart);
+  }
+  else
+  {
+    wxFAIL_MSG( _T("pStart is not before pEnd") );
+    Init();
+  }
 }
 
 wxStringBase::wxStringBase(size_type n, wxChar ch)
-- 
2.45.2